Updating cached headers Bulgaria dating sex chat

Fetching something over the network is both slow and expensive.Large responses require many roundtrips between the client and server, which delays when they are available and when the browser can process them, and also incurs data costs for the visitor.As a web developer, how do you take advantage of efficient revalidation? The browser automatically detects if a validation token has been previously specified, it appends the validation token to an outgoing request, and it updates the cache timestamps as necessary based on the received response from the server.The only thing left to do is to ensure that the server is providing the necessary ETag tokens.

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If you are using a Web View to fetch and display web content in your application, you might need to provide additional configuration flags to ensure that the HTTP cache is enabled, its size is set to a reasonable number to match your use case, and the cache is persisted.At this point, the browser could dispatch a new request and fetch the new full response.However, that’s inefficient because if the resource hasn't changed, then there's no reason to download the same information that's already in cache!For example, in the above exchange, the server returns a 1024-byte response, instructs the client to cache it for up to 120 seconds, and provides a validation token ("x234dff") that can be used after the response has expired to check if the resource has been modified.Assume that 120 seconds have passed since the initial fetch and the browser has initiated a new request for the same resource.

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